Unless you're doing Bikram or any other kind of hot yoga, your bangs should be pretty easy to salvage. Just wear a good headband, and use Schiappa's trick: "Part your bangs and pin them to the sides with bobby pins—that way you don't end up with a dent that makes them stick straight up afterward."
If sweat is the enemy of fringe, dry shampoo is its greatest ally. Alder New York Natural Hair Powder is an especially effective option. "It's great for people who sweat a lot—I tell my husband to use it when he has to speak in public," says Schiappa. It also works as a preventive measure: tap some on before a workout to absorb sweat at the hairline. Those with finer hair should try an eco-friendly aerosol, like Evo Water Killer or R+Co Death Valley.
"Sometimes there's no saving the bangs," Schiappa admits of sweatier activities like running. But when you don't have time to shampoo and style your whole head, she suggests washing just your bangs—a trick she practices herself. Afterward, blow dry them with a round brush, and no one will be the wiser.
If all else fails (after, say, a spin class that leaves you drenched), pin 'em back. "You can always braid your bangs into your hair or put them in a twist," says Schiappa. She recommends Magic Move, a lightweight pomade that adds hold without stiffness when creating off-the-forehead styles.